As extreme cold hits Eastern Canada, temperatures in Montreal, Quebec, plummeted to -25 degrees Celsius, causing a phenomenon called "sea smoke." Environment Canada issued extreme cold and snow squall warnings for Ottawa, eastern Ontario and western Quebec. Heavy snowfall accompanied strong winds, causing blizzard conditions and reducing visibility in Montreal. Every time it snows, some 3,000 workers and 2,200 vehicles go into action day and night to help make the streets passable.
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